William f



(No Model.)

W. F. Z. DE SANT. ELECTRIC- GONNEGTOR.

Nb. 465,430. Patent dDec. 15,1891.

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ELECTRIC CONN ECTOR.

SPECIFICATION forming part of Letters Patent No. 465,430, dated December 15, 1891.

Application filed May 20, 1890. Renewed July 1, 1891. erial No. 398,104- (No model.)

To aZZ whom it may concern.-

Be it known that LWILLIAM E. Z. DESANT, a citizen of the United States, residing at New York, county of New York, and State of New York, have made a new and useful invention in Electrical Connectors or Couplers, of which way-signals or in analogous places, and is applicable in any place where it is desired to connect or couple two parts of an electric circuit, so that the circuit shall be continuous through said coupler. p g

The objects of my invention are to devise a coupler which shall be simple, efficient, and secure and shall at the same time be little liable to get out of repair or subject the person or persons using it to liability of ashock or accident due to the electrical current. I accomplish these objects by means of the apparatus hereinafter described, but particularly pointed out in the claims which follow this specification.

My invention will be fully understood by referring to the accompanying drawings, in which Figure 1 represents a partly longitudinal sectional and partly elevational view of the entire apparatus disconnected. Fig. 2 is a similar view showing the parts connected. Fig. 3 is an end elevational view as seen looking into the interior of the left-hand portion of the apparatus, as shown in Fig. 1.

Like letters of reference represent like parts wherever used.

A is a solid cylindrical metallic block having drilled in its outer end a hole M, adapted to receive the end of an insulated wire or conductor w and held securely in position by solder s, as shown in Fig. 2.

B is an electrical protectingsl'eeve fitting over the end of the part A and held in position by screws 1). This protecting-sleeve is preferably of insulating material, such as hard rubber, and may be secured to thepart A in any preferred manner.

F isa light metallic sleeve or socket, preferably of cylindrical form, secured to the inner end of the part A either by a pin p or in o is a cylindrical metallic block similar in form to the part A and provided with a cylindrical plug 1) and shoulders K and T, the part D having a grooved depression e, of the same dimensions as the depression 6 in the parts G.

c c are grooves on the parts A and D for securing rubber or analogous protecting pipes or tubes P around said parts, and also around the insulating conducting-wires w w, the ends of said tubes P being depressed in the grooves 7 o c by wiresw 10 as shown in Fig. 2.

The operation of the apparatus is at once obvious. The free end of the tube B, coming in frictional contact with the shoulders K and T and the plug D fitting snuglyin the socket F, is locked in position by the parts e e under the influence of the spiral springS and spring parts G. It will thus be seen that a perfect connector is provided between the two adjacent ends of an electrical conductor and that there is little danger of its becoming accidentally disconnected, while the insulating sleeve B, which protects the parts A and F, secures the person making the connection from any accidental shocks, and the relation of the parts G and the sleeve B is'such that the insertion of the plug D is insured with a minimum amount'of trouble.

I am aware that plug and socket connectors have heretofore been devised, and I do not claim such a construction, broadly.

It will of course be understood that where this form of connector is used in low-tension circuits, where there is little danger from accidental electrical shocks, the sleeve B may be 5 of metal, if preferred; bntfor use ill systems of electric lighting and other places where there is a liability of dangerousshocks to persons manipulating the apparatus I prefer to make the sleeve B of insulating material, we or, if of metal, to insulate it from the parts A and F in any preferred manner.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. A connector or coupler for an electric circuit, consisting of two metallic or conducting parts secured to the ends of the circuit-wire, one of said parts having a conducting-socket andsurrounding shield and the other a conducting-plug and sustaining-shoulders, which fit snugly inside the surrounding tube, the whole being arranged substantially as shown and described.

2. A connector or coupler for an electric circuit, consisting of two metallic or conducting parts, one of which is provided with an elastic tubular conducting-socket and a surrounding shield and the other with a conductingplug and sustaining-shoulders, substantially as described.

3. A connector or coupler for an electriccircuit, consisting of two metallic or conducting parts, one of which is' provided with a hollow split yielding socket having a depressed bead or groove near its free end, in which rests a retaining-spring, and the other with a conducting-plug having a groove adapted to receive the first-named bead or groove, substantially as described. 7

4. A connector or coupler for an electric circuit, consisting of a split socket having a depressed bead near its outer end, in which rests a retaining-spring, in combination with a con- 5. A connector or coupler for an electric circuit, consisting of a split tubular socket having a depressed bead or groove near its free end and an elastic retaining device located in i end, as at e, with a surrounding spring 8 and a protecting-sleeve B, andthe latter a'conducting-plug D, grooved, as at e, and provided with shoulders K and T, substantially as described.

8. An electrical circuit consisting of insulated wires to 10', secured in electrical contact with the ends of the conducting parts A and C, in combination with surrounding or protectin g tubes P and a coupling device having a surrounding or protecting tube B, which protects the coupler when the parts are united, substantially as described.

\VM. F. Z. DESANT.

Witnesses;

- O. J. KINTNER, A. V.HENEY. 

